/Engine/Source/Runtime/GeometryCore/Public/DynamicMesh/DynamicMeshOverlay.h
Iterate through triangles connected to VertexID and call ProcessFunc for each per-triangle-vertex Element with its Value. ProcessFunc must return true to continue the enumeration, or false to early-terminate it
true if at least one valid Element was found, ie if ProcessFunc was called at least one time
bool EnumerateVertexElements ( int VertexID, [TFunctionRef](API\Runtime\Core\GenericPlatform\TFunctionRef)< bool(int TriangleID, int ElementID, const VectorType &Value)> ProcessFunc, bool bFindUniqueElements ) const